Crystal Caverns is a narrow, yet massive dungeon beneath the icy tundra known as the Eastern Wastes. Within, reside a clan of Ry`Gorr orcs as well as a sect of Coldain dwarves who maintain a frozen fortress called Froststone. Among the dwarves and orcs are numerous creatures that thrive in frigid conditions, like stalag terrors and crystal crawlers.

With the arrival of the fear shard, the caverns have begun to adapt to the presence of fear. New crystal deposits are being mined, and fear-tainted creatures are emerging.